Powerful and Versatile
The DX121 System is a highly versatile system that can be plugged directly into the headset jack of any popular intercom station or a four-wire device such as a digital matrix [...]

Powerful and Versatile
The DX121 System is a highly versatile system that can be plugged directly into the headset jack of any popular intercom station or a four-wire device such as a digital matrix [...]